-
Ullage or
headspace is the
unfilled space in a container,
particularly with a liquid. The word
ullage comes from the
Latin word oculus, used by the Romans...
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Ullage motors (also
known as
ullage engines or
ullage rockets) are
relatively small,
independently fueled rocket engines that may be
fired prior to main...
-
Ullage (from the
French ouillage) is a
winemaking term that has
several meanings but most
commonly refers to the
headspace of air
between wine and the...
-
fully filled, and
during use,
there is a
space above the fuel,
called the
ullage, that
contains evaporated fuel
mixed with air,
which contains the oxygen...
- and the
manufacture of the Jet ****isted Take Off (JATO)
rocket engines.
Ullage motors were
developed for the
Saturn V
Space Vehicle. The
group also built...
- As
propellant is
drained from its tank,
something must fill the
vacated ullage space to
maintain pressure inside the tanks. This is for two reasons: first...
-
infeasible at the time. The
upper stages also used
small solid-propellant
ullage motors that
helped to
separate the
stages during the launch, and to ensure...
-
control authority is
provided by cold gas
thrusters fed with
residual ullage gas. Four
perpendicular vents are
located within the interstage, placed...
- open
during flight when the
ullage (empty space)
pressure of the
liquid hydrogen tank
reaches 38 psi (260 kPa) or the
ullage pressure of the
liquid oxygen...
- velocities. Simply:
propellants pressurized by
either pumps or high
pressure ullage gas to
anywhere between two and
several hundred atmospheres are injected...
